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zvonat [6]
2 years ago
6

Mrs. Taft keeps inventory of the copy paper in the school copier room. Nine weeks ago, there were 150 reams of copy paper in the

room. Now, there are 85 reams left. Which of the following two expressions are equivalent to the average weekly change in the number of reams of copy paper in the copier room over this time period?
Choices: -9/65, 9/-65, 65/-9, -65/9 (the negative for this one applies to both numbers.) and -65/-9
Mathematics
1 answer:
Novay_Z [31]2 years ago
5 0

Answer:

-9/65

Step-by-step explanation:

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The area of an artist's square canvas can hold 113 square inches of paint. What is the approximate length of one side of the can
xeze [42]
The area of any rectangle is:

A=xy, and a square is just a special rectangle where the two dimensions are equal.  x=y=s, where s is the side length so the area of a square is:

A=s^2  we want to solve for s so

s^2=A

s=√A, and we are told that the area is 113 in^2

s=√113 in

s≈10.63 in (to nearest hundredth of an inch)
5 0
2 years ago
Find the sum of the first 40 terms of a geometric sequence where the first term is 16 and the common ratio is 1.1. 704 7,081.480
Lilit [14]

Step-by-step explanation:

The nth term of a geometric progression can be determined by using the formula:

Tn=arn−1

where: a = first term and r = common ratio

Substitute the given values of first term and common ratio into the formula:

Tn=arn−1

T5=(40)(0.5)5−1

T5=(40)(0.5)4

T5=(40)(0.0625)

T5=2.5

8 0
3 years ago
If y is 12 when x is 5, find x when y is 30
I am Lyosha [343]

We have no idea how 'x' responds to changes in 'y'.
We don't even know their units, to make a guess with.

-- If 'x' and 'y' are the ages of two people, then when y = 30, 'x' will be  23.

-- If they are the frequency and wavelength of a wave on the lake,
then when y = 30, 'x' will be  2 .

-- If 'x' is the weight of a rock in your front yard and 'y' is the number of pages
in today's newspaper, then 'y' has no effect on 'x'.  No matter what happens
to 'y' . . . 'x' will always be  5 .

With the information given in the question, we just don't know.

We need either an equation, or else one more example.


3 0
3 years ago
Negative 3 over 4 times negative 12
Ludmilka [50]

Answer:

9

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Hesperia Community Center is buying new seating for their building. They want to purchase a combination of stools and chairs. St
Digiron [165]

Answer:

<em>15c + 25s ≤ 1500</em>

Step-by-step explanation:

Let the number of stools be s

Let the number of chairs bought be c

If each tools cost $15, s stools will cost $15c

If a chairs cost $25, c chairs will cost $25s

Total costs = 15c + 25s

If the center cannot spend more than $1500, then the required equation will be 15c + 25s ≤ 1500

<em>The inequality sign will be less than and equal to since they cannot spend an amount greater than $1500.</em>

<em>Hence the correct equation is  15c + 25s ≤ 1500</em>

4 0
2 years ago
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